10
•
If the gas supply pressure can exceed 14 inches of water column at any time, you must
install a lockup type gas pressure regulator in the gas supply piping, ahead of the main
manual gas valve on the burner.
•
The furnace and its gas connections must be leak tested before placing the boiler in
operation.
•
Enough combustion air should be provided to the gas-fired furnace in accordance with
the section “Air for combustion and ventilation” of the National Fuel Gas Code ANSI
Z223.1/NFPA 54 or clause 8,2, 8,3 or 8.4 of Natural gas and Propane installation code
CAN/CSA B149.1, or applicable provisions of the local building codes.
TEST AND PURGE GAS LINE
1. Read warning above.
2. Pressure test and purge the line. Pressure testing should be done by the gas supplier or
utility, following all applicable codes.
